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102400 Potassium hydrogen phthalate

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Key Specifications Table

CAS #EC NumberHill FormulaMolar MassGrade Value
877-24-7212-889-4C₈H₅KO₄204.22 g/molReag. Ph Eur


Catalog NumberPackaging Qty/Pack
1024000080 Glass bottle 80 g
1024000083 Glass bottle 80 g
Catalogue Number102400
Product Information
CAS number877-24-7
EC number212-889-4
GradeReag. Ph Eur
Hill FormulaC₈H₅KO₄
Molar Mass204.22 g/mol
HS Code2917 39 20
Structure formula ImageStructure formula Image
Quality LevelMQ300
ApplicationPotassium hydrogen phthalate Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eu. CAS 877-24-7, pH 4.0 (50 g/l, H₂O, 20 °C).
Biological Information
Physicochemical Information
Density1.571 g/cm3 (20 °C)
Flash point197.3 °C not applicable
Melting Point295 - 300 °C
pH value4.0 (50 g/l, H₂O, 20 °C)
Bulk density900 kg/m3
Solubility80 g/l
Materials Information
Toxicological Information
LD 50 oralLD50 Rat > 3200 mg/kg
Safety Information according to GHS
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Safety Information
Product Usage Statements
Storage and Shipping Information
StorageStore at +15°C to +25°C.
Packaging Information
Transport Information
Supplemental Information
Global Trade Item Number
Catalog Number GTIN
1024000080 04022536555768
1024000083 04054839567575

Related Products & Applications

Accessories (Primary)

Catalog Number Description
100326 Hydrochloric acid in 2-propanol
105544 Potassium hydroxide solution in isopropanol
109114 Potassium hydroxide solution in ethanol
109351 Potassium hydroxide solution in methanol

Accessories (Secondary)


Reagents, Chemicals and Labware > Inorganic Reagents > Instrumental Inorganic Analysis > Certipur® Standards, Reference Materials and Buffers > Certipur® Volumetric Standards > for Alkalimetry
Analytics and Sample Preparation > Reference Materials > Certipur® Volumetric Standards > for Alkalimetry